1571160161 has 4 divisors (see below), whose sum is σ = 1571239572. Its totient is φ = 1571080752.

The previous prime is 1571160131. The next prime is 1571160163. The reversal of 1571160161 is 1610611751.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 811110400 + 760049761 = 28480^2 + 27569^2 .

It is a cyclic number.

It is not a de Polignac number, because 1571160161 - 2¹⁰ = 1571159137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1571160163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16391 + ... + 58403.

It is an arithmetic number, because the mean of its divisors is an integer number (392809893).

Almost surely, 2^1571160161 is an apocalyptic number.

It is an amenable number.

1571160161 is a deficient number, since it is larger than the sum of its proper divisors (79411).

1571160161 is an equidigital number, since it uses as much as digits as its factorization.

1571160161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79410.

The product of its (nonzero) digits is 1260, while the sum is 29.

The square root of 1571160161 is about 39637.8627198793. The cubic root of 1571160161 is about 1162.5370948351.

The spelling of 1571160161 in words is "one billion, five hundred seventy-one million, one hundred sixty thousand, one hundred sixty-one".